diff options
Diffstat (limited to 'drivers/media/video/vpx3220.c')
| -rw-r--r-- | drivers/media/video/vpx3220.c | 591 |
1 files changed, 0 insertions, 591 deletions
diff --git a/drivers/media/video/vpx3220.c b/drivers/media/video/vpx3220.c deleted file mode 100644 index 2f67b4c5c823..000000000000 --- a/drivers/media/video/vpx3220.c +++ /dev/null @@ -1,591 +0,0 @@ -/* - * vpx3220a, vpx3216b & vpx3214c video decoder driver version 0.0.1 - * - * Copyright (C) 2001 Laurent Pinchart <lpinchart@freegates.be> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -#include <linux/module.h> -#include <linux/init.h> -#include <linux/delay.h> -#include <linux/types.h> -#include <linux/slab.h> -#include <asm/uaccess.h> -#include <linux/i2c.h> -#include <linux/videodev2.h> -#include <media/v4l2-device.h> -#include <media/v4l2-chip-ident.h> -#include <media/v4l2-ctrls.h> - -MODULE_DESCRIPTION("vpx3220a/vpx3216b/vpx3214c video decoder driver"); -MODULE_AUTHOR("Laurent Pinchart"); -MODULE_LICENSE("GPL"); - -static int debug; -module_param(debug, int, 0); -MODULE_PARM_DESC(debug, "Debug level (0-1)"); - - -#define VPX_TIMEOUT_COUNT 10 - -/* ----------------------------------------------------------------------- */ - -struct vpx3220 { - struct v4l2_subdev sd; - struct v4l2_ctrl_handler hdl; - unsigned char reg[255]; - - v4l2_std_id norm; - int ident; - int input; - int enable; -}; - -static inline struct vpx3220 *to_vpx3220(struct v4l2_subdev *sd) -{ - return container_of(sd, struct vpx3220, sd); -} - -static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl) -{ - return &container_of(ctrl->handler, struct vpx3220, hdl)->sd; -} - -static char *inputs[] = { "internal", "composite", "svideo" }; - -/* ----------------------------------------------------------------------- */ - -static inline int vpx3220_write(struct v4l2_subdev *sd, u8 reg, u8 value) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - struct vpx3220 *decoder = i2c_get_clientdata(client); - - decoder->reg[reg] = value; - return i2c_smbus_write_byte_data(client, reg, value); -} - -static inline int vpx3220_read(struct v4l2_subdev *sd, u8 reg) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - - return i2c_smbus_read_byte_data(client, reg); -} - -static int vpx3220_fp_status(struct v4l2_subdev *sd) -{ - unsigned char status; - unsigned int i; - - for (i = 0; i < VPX_TIMEOUT_COUNT; i++) { - status = vpx3220_read(sd, 0x29); - - if (!(status & 4)) - return 0; - - udelay(10); - - if (need_resched()) - cond_resched(); - } - - return -1; -} - -static int vpx3220_fp_write(struct v4l2_subdev *sd, u8 fpaddr, u16 data) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - - /* Write the 16-bit address to the FPWR register */ - if (i2c_smbus_write_word_data(client, 0x27, swab16(fpaddr)) == -1) { - v4l2_dbg(1, debug, sd, "%s: failed\n", __func__); - return -1; - } - - if (vpx3220_fp_status(sd) < 0) - return -1; - - /* Write the 16-bit data to the FPDAT register */ - if (i2c_smbus_write_word_data(client, 0x28, swab16(data)) == -1) { - v4l2_dbg(1, debug, sd, "%s: failed\n", __func__); - return -1; - } - - return 0; -} - -static u16 vpx3220_fp_read(struct v4l2_subdev *sd, u16 fpaddr) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - s16 data; - - /* Write the 16-bit address to the FPRD register */ - if (i2c_smbus_write_word_data(client, 0x26, swab16(fpaddr)) == -1) { - v4l2_dbg(1, debug, sd, "%s: failed\n", __func__); - return -1; - } - - if (vpx3220_fp_status(sd) < 0) - return -1; - - /* Read the 16-bit data from the FPDAT register */ - data = i2c_smbus_read_word_data(client, 0x28); - if (data == -1) { - v4l2_dbg(1, debug, sd, "%s: failed\n", __func__); - return -1; - } - - return swab16(data); -} - -static int vpx3220_write_block(struct v4l2_subdev *sd, const u8 *data, unsigned int len) -{ - u8 reg; - int ret = -1; - - while (len >= 2) { - reg = *data++; - ret = vpx3220_write(sd, reg, *data++); - if (ret < 0) - break; - len -= 2; - } - - return ret; -} - -static int vpx3220_write_fp_block(struct v4l2_subdev *sd, - const u16 *data, unsigned int len) -{ - u8 reg; - int ret = 0; - - while (len > 1) { - reg = *data++; - ret |= vpx3220_fp_write(sd, reg, *data++); - len -= 2; - } - - return ret; -} - -/* ---------------------------------------------------------------------- */ - -static const unsigned short init_ntsc[] = { - 0x1c, 0x00, /* NTSC tint angle */ - 0x88, 17, /* Window 1 vertical */ - 0x89, 240, /* Vertical lines in */ - 0x8a, 240, /* Vertical lines out */ - 0x8b, 000, /* Horizontal begin */ - 0x8c, 640, /* Horizontal length */ - 0x8d, 640, /* Number of pixels */ - 0x8f, 0xc00, /* Disable window 2 */ - 0xf0, 0x73, /* 13.5 MHz transport, Forced - * mode, latch windows */ - 0xf2, 0x13, /* NTSC M, composite input */ - 0xe7, 0x1e1, /* Enable vertical standard - * locking @ 240 lines */ -}; - -static const unsigned short init_pal[] = { - 0x88, 23, /* Window 1 vertical begin */ - 0x89, 288, /* Vertical lines in (16 lines - * skipped by the VFE) */ - 0x8a, 288, /* Vertical lines out (16 lines - * skipped by the VFE) */ - 0x8b, 16, /* Horizontal begin */ - 0x8c, 768, /* Horizontal length */ - 0x8d, 784, /* Number of pixels - * Must be >= Horizontal begin + Horizontal length */ - 0x8f, 0xc00, /* Disable window 2 */ - 0xf0, 0x77, /* 13.5 MHz transport, Forced - * mode, latch windows */ - 0xf2, 0x3d1, /* PAL B,G,H,I, composite input */ - 0xe7, 0x241, /* PAL/SECAM set to 288 lines */ -}; - -static const unsigned short init_secam[] = { - 0x88, 23, /* Window 1 vertical begin */ - 0x89, 288, /* Vertical lines in (16 lines - * skipped by the VFE) */ - 0x8a, 288, /* Vertical lines out (16 lines - * skipped by the VFE) */ - 0x8b, 16, /* Horizontal begin */ - 0x8c, 768, /* Horizontal length */ - 0x8d, 784, /* Number of pixels - * Must be >= Horizontal begin + Horizontal length */ - 0x8f, 0xc00, /* Disable window 2 */ - 0xf0, 0x77, /* 13.5 MHz transport, Forced - * mode, latch windows */ - 0xf2, 0x3d5, /* SECAM, composite input */ - 0xe7, 0x241, /* PAL/SECAM set to 288 lines */ -}; - -static const unsigned char init_common[] = { - 0xf2, 0x00, /* Disable all outputs */ - 0x33, 0x0d, /* Luma : VIN2, Chroma : CIN - * (clamp off) */ - 0xd8, 0xa8, /* HREF/VREF active high, VREF - * pulse = 2, Odd/Even flag */ - 0x20, 0x03, /* IF compensation 0dB/oct */ - 0xe0, 0xff, /* Open up all comparators */ - 0xe1, 0x00, - 0xe2, 0x7f, - 0xe3, 0x80, - 0xe4, 0x7f, - 0xe5, 0x80, - 0xe6, 0x00, /* Brightness set to 0 */ - 0xe7, 0xe0, /* Contrast to 1.0, noise shaping - * 10 to 8 2-bit error diffusion */ - 0xe8, 0xf8, /* YUV422, CbCr binary offset, - * ... (p.32) */ - 0xea, 0x18, /* LLC2 connected, output FIFO - * reset with VACTintern */ - 0xf0, 0x8a, /* Half full level to 10, bus - * shuffler [7:0, 23:16, 15:8] */ - 0xf1, 0x18, /* Single clock, sync mode, no - * FE delay, no HLEN counter */ - 0xf8, 0x12, /* Port A, PIXCLK, HF# & FE# - * strength to 2 */ - 0xf9, 0x24, /* Port B, HREF, VREF, PREF & - * ALPHA strength to 4 */ -}; - -static const unsigned short init_fp[] = { - 0x59, 0, - 0xa0, 2070, /* ACC reference */ - 0xa3, 0, - 0xa4, 0, - 0xa8, 30, - 0xb2, 768, - 0xbe, 27, - 0x58, 0, - 0x26, 0, - 0x4b, 0x298, /* PLL gain */ -}; - - -static int vpx3220_init(struct v4l2_subdev *sd, u32 val) -{ - struct vpx3220 *decoder = to_vpx3220(sd); - - vpx3220_write_block(sd, init_common, sizeof(init_common)); - vpx3220_write_fp_block(sd, init_fp, sizeof(init_fp) >> 1); - if (decoder->norm & V4L2_STD_NTSC) - vpx3220_write_fp_block(sd, init_ntsc, sizeof(init_ntsc) >> 1); - else if (decoder->norm & V4L2_STD_PAL) - vpx3220_write_fp_block(sd, init_pal, sizeof(init_pal) >> 1); - else if (decoder->norm & V4L2_STD_SECAM) - vpx3220_write_fp_block(sd, init_secam, sizeof(init_secam) >> 1); - else - vpx3220_write_fp_block(sd, init_pal, sizeof(init_pal) >> 1); - return 0; -} - -static int vpx3220_status(struct v4l2_subdev *sd, u32 *pstatus, v4l2_std_id *pstd) -{ - int res = V4L2_IN_ST_NO_SIGNAL, status; - v4l2_std_id std = 0; - - status = vpx3220_fp_read(sd, 0x0f3); - - v4l2_dbg(1, debug, sd, "status: 0x%04x\n", status); - - if (status < 0) - return status; - - if ((status & 0x20) == 0) { - res = 0; - - switch (status & 0x18) { - case 0x00: - case 0x10: - case 0x14: - case 0x18: - std = V4L2_STD_PAL; - break; - - case 0x08: - std = V4L2_STD_SECAM; - break; - - case 0x04: - case 0x0c: - case 0x1c: - std = V4L2_STD_NTSC; - break; - } - } - if (pstd) - *pstd = std; - if (pstatus) - *pstatus = res; - return 0; -} - -static int vpx3220_querystd(struct v4l2_subdev *sd, v4l2_std_id *std) -{ - v4l2_dbg(1, debug, sd, "querystd\n"); - return vpx3220_status(sd, NULL, std); -} - -static int vpx3220_g_input_status(struct v4l2_subdev *sd, u32 *status) -{ - v4l2_dbg(1, debug, sd, "g_input_status\n"); - return vpx3220_status(sd, status, NULL); -} - -static int vpx3220_s_std(struct v4l2_subdev *sd, v4l2_std_id std) -{ - struct vpx3220 *decoder = to_vpx3220(sd); - int temp_input; - - /* Here we back up the input selection because it gets - overwritten when we fill the registers with the - chosen video norm */ - temp_input = vpx3220_fp_read(sd, 0xf2); - - v4l2_dbg(1, debug, sd, "s_std %llx\n", (unsigned long long)std); - if (std & V4L2_STD_NTSC) { - vpx3220_write_fp_block(sd, init_ntsc, sizeof(init_ntsc) >> 1); - v4l2_dbg(1, debug, sd, "norm switched to NTSC\n"); - } else if (std & V4L2_STD_PAL) { - vpx3220_write_fp_block(sd, init_pal, sizeof(init_pal) >> 1); - v4l2_dbg(1, debug, sd, "norm switched to PAL\n"); - } else if (std & V4L2_STD_SECAM) { - vpx3220_write_fp_block(sd, init_secam, sizeof(init_secam) >> 1); - v4l2_dbg(1, debug, sd, "norm switched to SECAM\n"); - } else { - return -EINVAL; - } - - decoder->norm = std; - - /* And here we set the backed up video input again */ - vpx3220_fp_write(sd, 0xf2, temp_input | 0x0010); - udelay(10); - return 0; -} - -static int vpx3220_s_routing(struct v4l2_subdev *sd, - u32 input, u32 output, u32 config) -{ - int data; - - /* RJ: input = 0: ST8 (PCTV) input - input = 1: COMPOSITE input - input = 2: SVHS input */ - - const int input_vals[3][2] = { - {0x0c, 0}, - {0x0d, 0}, - {0x0e, 1} - }; - - if (input > 2) - return -EINVAL; - - v4l2_dbg(1, debug, sd, "input switched to %s\n", inputs[input]); - - vpx3220_write(sd, 0x33, input_vals[input][0]); - - data = vpx3220_fp_read(sd, 0xf2) & ~(0x0020); - if (data < 0) - return data; - /* 0x0010 is required to latch the setting */ - vpx3220_fp_write(sd, 0xf2, - data | (input_vals[input][1] << 5) | 0x0010); - - udelay(10); - return 0; -} - -static int vpx3220_s_stream(struct v4l2_subdev *sd, int enable) -{ - v4l2_dbg(1, debug, sd, "s_stream %s\n", enable ? "on" : "off"); - - vpx3220_write(sd, 0xf2, (enable ? 0x1b : 0x00)); - return 0; -} - -static int vpx3220_s_ctrl(struct v4l2_ctrl *ctrl) -{ - struct v4l2_subdev *sd = to_sd(ctrl); - - switch (ctrl->id) { - case V4L2_CID_BRIGHTNESS: - vpx3220_write(sd, 0xe6, ctrl->val); - return 0; - case V4L2_CID_CONTRAST: - /* Bit 7 and 8 is for noise shaping */ - vpx3220_write(sd, 0xe7, ctrl->val + 192); - return 0; - case V4L2_CID_SATURATION: - vpx3220_fp_write(sd, 0xa0, ctrl->val); - return 0; - case V4L2_CID_HUE: - vpx3220_fp_write(sd, 0x1c, ctrl->val); - return 0; - } - return -EINVAL; -} - -static int vpx3220_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip) -{ - struct vpx3220 *decoder = to_vpx3220(sd); - struct i2c_client *client = v4l2_get_subdevdata(sd); - - return v4l2_chip_ident_i2c_client(client, chip, decoder->ident, 0); -} - -/* ----------------------------------------------------------------------- */ - -static const struct v4l2_ctrl_ops vpx3220_ctrl_ops = { - .s_ctrl = vpx3220_s_ctrl, -}; - -static const struct v4l2_subdev_core_ops vpx3220_core_ops = { - .g_chip_ident = vpx3220_g_chip_ident, - .init = vpx3220_init, - .g_ext_ctrls = v4l2_subdev_g_ext_ctrls, - .try_ext_ctrls = v4l2_subdev_try_ext_ctrls, - .s_ext_ctrls = v4l2_subdev_s_ext_ctrls, - .g_ctrl = v4l2_subdev_g_ctrl, - .s_ctrl = v4l2_subdev_s_ctrl, - .queryctrl = v4l2_subdev_queryctrl, - .querymenu = v4l2_subdev_querymenu, - .s_std = vpx3220_s_std, -}; - -static const struct v4l2_subdev_video_ops vpx3220_video_ops = { - .s_routing = vpx3220_s_routing, - .s_stream = vpx3220_s_stream, - .querystd = vpx3220_querystd, - .g_input_status = vpx3220_g_input_status, -}; - -static const struct v4l2_subdev_ops vpx3220_ops = { - .core = &vpx3220_core_ops, - .video = &vpx3220_video_ops, -}; - -/* ----------------------------------------------------------------------- - * Client management code - */ - -static int vpx3220_probe(struct i2c_client *client, - const struct i2c_device_id *id) -{ - struct vpx3220 *decoder; - struct v4l2_subdev *sd; - const char *name = NULL; - u8 ver; - u16 pn; - - /* Check if the adapter supports the needed features */ - if (!i2c_check_functionality(client->adapter, - I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA)) - return -ENODEV; - - decoder = kzalloc(sizeof(struct vpx3220), GFP_KERNEL); - if (decoder == NULL) - return -ENOMEM; - sd = &decoder->sd; - v4l2_i2c_subdev_init(sd, client, &vpx3220_ops); - decoder->norm = V4L2_STD_PAL; - decoder->input = 0; - decoder->enable = 1; - v4l2_ctrl_handler_init(&decoder->hdl, 4); - v4l2_ctrl_new_std(&decoder->hdl, &vpx3220_ctrl_ops, - V4L2_CID_BRIGHTNESS, -128, 127, 1, 0); - v4l2_ctrl_new_std(&decoder->hdl, &vpx3220_ctrl_ops, - V4L2_CID_CONTRAST, 0, 63, 1, 32); - v4l2_ctrl_new_std(&decoder->hdl, &vpx3220_ctrl_ops, - V4L2_CID_SATURATION, 0, 4095, 1, 2048); - v4l2_ctrl_new_std(&decoder->hdl, &vpx3220_ctrl_ops, - V4L2_CID_HUE, -512, 511, 1, 0); - sd->ctrl_handler = &decoder->hdl; - if (decoder->hdl.error) { - int err = decoder->hdl.error; - - v4l2_ctrl_handler_free(&decoder->hdl); - kfree(decoder); - return err; - } - v4l2_ctrl_handler_setup(&decoder->hdl); - - ver = i2c_smbus_read_byte_data(client, 0x00); - pn = (i2c_smbus_read_byte_data(client, 0x02) << 8) + - i2c_smbus_read_byte_data(client, 0x01); - decoder->ident = V4L2_IDENT_VPX3220A; - if (ver == 0xec) { - switch (pn) { - case 0x4680: - name = "vpx3220a"; - break; - case 0x4260: - name = "vpx3216b"; - decoder->ident = V4L2_IDENT_VPX3216B; - break; - case 0x4280: - name = "vpx3214c"; - decoder->ident = V4L2_IDENT_VPX3214C; - break; - } - } - if (name) - v4l2_info(sd, "%s found @ 0x%x (%s)\n", name, - client->addr << 1, client->adapter->name); - else - v4l2_info(sd, "chip (%02x:%04x) found @ 0x%x (%s)\n", - ver, pn, client->addr << 1, client->adapter->name); - - vpx3220_write_block(sd, init_common, sizeof(init_common)); - vpx3220_write_fp_block(sd, init_fp, sizeof(init_fp) >> 1); - /* Default to PAL */ - vpx3220_write_fp_block(sd, init_pal, sizeof(init_pal) >> 1); - return 0; -} - -static int vpx3220_remove(struct i2c_client *client) -{ - struct v4l2_subdev *sd = i2c_get_clientdata(client); - struct vpx3220 *decoder = to_vpx3220(sd); - - v4l2_device_unregister_subdev(sd); - v4l2_ctrl_handler_free(&decoder->hdl); - kfree(decoder); - return 0; -} - -static const struct i2c_device_id vpx3220_id[] = { - { "vpx3220a", 0 }, - { "vpx3216b", 0 }, - { "vpx3214c", 0 }, - { } -}; -MODULE_DEVICE_TABLE(i2c, vpx3220_id); - -static struct i2c_driver vpx3220_driver = { - .driver = { - .owner = THIS_MODULE, - .name = "vpx3220", - }, - .probe = vpx3220_probe, - .remove = vpx3220_remove, - .id_table = vpx3220_id, -}; - -module_i2c_driver(vpx3220_driver); |
